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nikitadnepr [17]

2 years ago

14

5 Which of the following must be transformed into electrical energy when biomass is used as an energy resource? * DS (20 Points)

A chemical energy B. mechanical energy O C. nuclear energy D. radiant energy

1 answer:

Lemur [1.5K]2 years ago

3 0

Answer:

nuclear energy

Explanation:

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Water being turned into ice cubes in a freezer is an example of _____.

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a physical change

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Which sentence states Newton’s third law?

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3 years ago

How is cold front formation different from stationary front formation?

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3 years ago

A box sliding on a horizontal frictionless surface runs into a fixed spring, compressing it a distance x1 from its relaxed posit

inn [45]

Answer:twice of initial value

Explanation:

Given

spring compresses $x_1$ distance for some initial speed

Suppose v is the initial speed and k be the spring constant

Applying conservation of energy

kinetic energy converted into spring Elastic potential energy

$\dfrac{1}{2}mv^2=\dfrac{1}{2}kx_1^2----1$

When speed doubles

$\dfrac{1}{2}m(2v)^2=\dfrac{1}{2}kx_2^2----2$

divide 1 and 2

$\dfrac{1}{4}=\dfrac{x_1^2}{x_2^2}$

$x_2=2x_1$

Therefore spring compresses twice the initial value

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3 years ago